<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row :gutter="35">
        <el-col :span="8">
          <el-input placeholder="请输入内容" clearable @clear="getUserList" v-model="queryInfo.query" class="input-with-select">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <div slot-scope="scope">
            <el-switch
                    v-model="scope.row.mg_state"
                    @change = userStateChanged(scope.row)>
            </el-switch>
          </div>
        </el-table-column>
        <el-table-column label="操作" min-width="180px">
          <div slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row)"></el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button size="mini" type="warning" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </div>
        </el-table-column>
      </el-table>
      <el-pagination
              @size-change="handleSizeChange"
              @current-change="handleCurrentChange"
              :current-page=queryInfo.pagenum
              :page-sizes="[1, 2, 5, 10]"
              :page-size=queryInfo.pagesize
              layout="total, sizes, prev, pager, next, jumper"
              :total=total>
      </el-pagination>
    </el-card>

    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <el-form ref="addFormRef" :model="addForm" label-width="80px" :rules="addFormRules">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="addDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="addUser">确定</el-button>
      </span>
    </el-dialog>


    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form ref="editFormRef" :model="editForm" label-width="80px" :rules="editFormRules">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="editDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="editUserInfo">确定</el-button>
      </span>
    </el-dialog>


    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <p>当前的用户：{{userInfo.username}}</p>
      <p>当前的角色：{{userInfo.role_name}}</p>
      <div>
        <span>分配新角色：</span>
        <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
                  v-for="item in rolesList"
                  :key="item.id"
                  :label="item.roleName"
                  :value="item.id">
          </el-option>
        </el-select>
      </div>
      <span slot="footer">
        <el-button @click="editDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    name: "Users",
    data(){
      var checkEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }

        cb(new Error('请输入合法的邮箱'))
      }

      // 验证手机号的规则
      var checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

        if (regMobile.test(value)) {
          return cb()
        }

        cb(new Error('请输入合法的手机号'))
      }
      return{
        editFormRules:{
          username: [
            {required: true, message:'请输入用户名', trigger: 'blur'},
            {min:3, max:10, message: '请输入3-10个字符', trigger: 'blur'}
          ],
          email: [
            {required: true, message:'请输入邮箱', trigger: 'blur'},
            {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required: true, message:'请输入手机号', trigger: 'blur'},
            {validator: checkMobile, trigger: 'blur'}
          ]
        },
        addFormRules:{
          username: [
            {required: true, message:'请输入用户名', trigger: 'blur'},
            {min:3, max:10, message: '请输入3-10个字符', trigger: 'blur'}
          ],
          password: [
            {required: true, message:'请输入密码', trigger: 'blur'},
            {min:6, max:15, message: '请输入6-15个字符', trigger: 'blur'}
          ],
          email: [
            {required: true, message:'请输入邮箱', trigger: 'blur'},
            {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required: true, message:'请输入手机号', trigger: 'blur'},
            {validator: checkMobile, trigger: 'blur'}
          ]
        },
        editForm: {
          username: '',
          email: '',
          mobile: ''
        },
        editDialogVisible:false,
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        addDialogVisible:false,
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 2
        },
        userlist:[],
        total:0,
        rolesList: [],
        setRoleDialogVisible:false,
        userInfo: {},
        selectedRoleId: ''
      }
    },
    created() {
      this.getUserList()
    },
    methods:{
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) return
          // 发起修改用户信息的数据请求
          const { data: res } = await this.$http.put(
              'users/' + this.editForm.id,
              {
                email: this.editForm.email,
                mobile: this.editForm.mobile
              }
          )

          if (res.meta.status !== 200) {
            return this.$message.error('更新用户信息失败！')
          }

          // 关闭对话框
          this.editDialogVisible = false
          // 刷新数据列表
          this.getUserList()
          // 提示修改成功
          this.$message.success('更新用户信息成功！')
        })
      },
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      async saveRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error('请选择要分配的角色！')
        }
        const {data: res} = await this.$http.put(
            `users/${this.userInfo.id}/role`,
            {rid:this.selectedRoleId}
        )
        if(res.meta.status !== 200){
          return this.$message.error('更新角色失败！')
        }
        this.$message.success('更新角色成功！')
        this.getUserList()
        this.setRoleDialogVisible = false
      },
      setRoleDialogClosed(){
        this.selectedRoleId = ''
      },
      async setRole(userInfo){
        this.userInfo = userInfo
        const {data: res} = await this.$http.get('roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败！')
        }
        this.rolesList = res.data
        this.setRoleDialogVisible = true

      },
      async removeUserById(id){
        const confirmResult = await this.$confirm(
            '此操作将永久删除该用户, 是否继续?',
            '提示',
            {
              confirmButtonText: '确定',
              cancelButtonText: '取消',
              type: 'warning'
            }
        )
        if(confirmResult !== 'confirm'){
          return this.$message.info('已取消删除')
        }
        const {data: res} = await this.$http.delete('users/'+ id)
        if(res.meta.status !== 200){
          return this.$message.error('删除用户失败！')
        }
        this.$message.success('删除用户成功！')
        this.getUserList()
      },
      async showEditDialog(info){
        this.editForm = info
        this.editDialogVisible = true
      },
      addDialogClosed(){
        this.$refs.addFormRef.resetFields()
      },
      async addUser(){
        this.$refs.addFormRef.validate(async valid => {
          if(valid){
            const {data: res} = await this.$http.post('users', this.addForm)
            if(res.meta.status !== 201){
              this.$message.error('添加用户失败!')
            }
            this.$message.success('添加用户成功!')
            this.addDialogVisible = false
            // 重新获取用户列表数据
            this.getUserList()
          }
        })
      },
      async userStateChanged(userInfo){
        const {data: res} = await  this.$http.put(
            `users/${userInfo.id}/state/${userInfo.mg_state}`
        )
        if(res.meta.status !== 200){
          userInfo.mg_state = !userInfo.mg_state
          this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功')
      },
      handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      async getUserList(){
        const {data: res} = await this.$http.get('users',{
          params: this.queryInfo
        })
        if(res.meta.status !== 200){
          return this.$message.error('获取用户列表失败！')
        }
        this.userlist = res.data.users
        this.total = res.data.total
      }
    }
  }
</script>

<style scoped>

</style>